A shop has a sale of 25% off all items in stock. If the original price of a dress is £80 what would be its sale price?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

What are the solutions of the following system? y=-2x^2 y=x-2